Nick Jandl

The murder of a petty officer in a small town outside DC prompts NCIS to once again work with The Sherlocks, a privately funded investigative team.

A Navy officer is killed while driving a car belonging to the socialite daughter of a real estate mogul. LAPD officer Marty Deeks struggles to fit in with the team in his new role as the NCIS/LAPD liaison officer.

Casey asserts his authority while trying to save a teenager trapped in barbed wire, causing an argument with Severide; Otis attempts to get Casey to agree to test an expensive piece of firefighting equipment.

Rayna tries to help Deacon. Meanwhile, Jade throws a party at her house that turns into an all-night bash and Juliette attempts to reinvigorate her career with an impromptu rooftop concert.

Juliette hits a career high, including singing a duet with Steven Tyler, but her personal life plummets. Meanwhile, Avery takes care of baby Cadence at his parents' home in Texas and Rayna deals with the aftermath of Deacon's liver transplant.

Rayna's daughters and Luke don't take the news of the cancelled wedding very well. Meanwhile, Very and Juliette encounter a few bumps as they adjust to married life.